Table 2.
Variable | Level | Age 7 (n = 8331) |
Age 13 (n = 2332) |
---|---|---|---|
Number (%) | Number (%) | ||
Gender | Male | 4312 (52) | 751 (32) |
Female | 4019 (48) | 1580 (68) | |
Ethnicity | White | 6068 (97) | 1868 (97) |
Non-white | 422 (3) | 50 (3) | |
Number of people in household | 3 | 1233 (15) | 323 (15) |
4 | 4168 (50) | 1138 (51) | |
5+ | 2904 (35) | 774 (34) | |
Presence of an older sibling at 18 months | Yes | 4323 (54) | 1140 (51) |
No | 3636 (46) | 1095 (49) | |
Maternal education | CSE or no qualification (lowest) | 1631 (21) | 222 (10) |
Vocational | 710 (9) | 166 (7) | |
O level | 2873 (35) | 722 (32) | |
A level | 2102 (26) | 647 (29) | |
Degree (highest) | 1269 (16) | 478 (21) | |
Paternal education | CSE or no qualification (lowest) | 1631 (21) | 366 (16) |
Vocational | 639 (8) | 165 (7) | |
O level | 1711 (22) | 451 (20) | |
A level | 2199 (28) | 645 (29) | |
Degree (highest) | 1683 (21) | 608 (27) | |
Maternal social class | Professional (highest) | 478 (7) | 189 (9) |
Managerial and technical | 2365 (34) | 814 (36) | |
Skilled: non-manual | 2957 (43) | 892 (40) | |
Skilled: manual | 467 (7) | 131 (6) | |
Partly skilled | 550 (8) | 176 (8) | |
Unskilled (lowest) | 116 (2) | 33 (2) | |
Paternal social class | Professional (highest) | 941 (13) | 344 (15) |
Managerial and technical | 2667 (36) | 839 (38) | |
Skilled: non-manual | 858 (12) | 274 (12) | |
Skilled: manual | 2154 (29) | 574 (26) | |
Partly skilled | 603 (8) | 167 (8) | |
Unskilled (lowest) | 189 (3) | 37 (2) | |
Maternal age at delivery | < 21 years | 303 (4) | 56 (3) |
21–30 years | 5043 (61) | 1292 (58) | |
> 30 years | 2985 (36) | 887 (40) | |
Mother had pets as a child | No, not at all | 743 (10) | 196 (9) |
Yes, part of time | 3517 (46) | 994 (45) | |
Yes, always | 3365 (44) | 1045 (47) | |
House type | Detached | 2443 (29) | 764 (34) |
Semi-detached | 3086 (27) | 801 (36) | |
End terrace | 771 (9) | 198 (9) | |
Terraced | 1652 (20) | 396 (18) | |
Flat/room in someone else’s house/other | 336 (4) | 76 (3) |